ML20133A414

Forwards Request for Addl Info Re Const of Bldg 10 & Associated Walkover Structure,Including Engineering Drawings,Walkover Structure Layout & Spatial Relationship W/Surrounding Bldgs

ML20133A414
Person / Time
Site:	Fort Saint Vrain
Issue date:	07/23/1985
From:	Hunter D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:	Lee O PUBLIC SERVICE CO. OF COLORADO
References
TAC-55287, NUDOCS 8508050466
Download: ML20133A414 (3)

Text

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JUI 23 N Docket:

50-267 Public Service Company of Colorado ATTN:

0. R. Lee, Vice President Electric Production g-t P. O. Box 840 Denver, Colorado 80201 s

Dear Mr. Lee:

We have reviewed the documents you have provided related to the construction of Building 10 and its associated walk-over structure. We find that additional information is needed for us to continue our review. Therefore, we request that you provide the information requested in the enclosure within 30 days of your receipt of this letter.

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If you have any questions on this request, please contact the NRC Project Manager,P. Wagner,at(817)860-8127.

i Since this reporting request relates solely to the Fort St. Vrain Station, OMB clearance is not required under P.L.96-511.

Sincerely,

" Original SNwb BT-D. R. HONTER"

,I:h rwin R. Hunter, Chief Reactor Safety Branch

Enclosure:

Request for Information 9

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cc:

F Mr. D. W. Warembourg, Manager Nuclear Engineering Division E

Public Service Company of Colorado P. O. Box 840 Denver, Colorado 80201 1

Mr. David Alberstein, 14/159A

.GA Technologies, Inc.

P. O. Box ~85603 San Diego, California 92138 Kelley, Stansfield & 0'Donnell Public Service Company Building 550 15th Street, Room 900 Denver, Colorado 80202 l

Chairman, Board of County Comm.

i of Weld County, Colorado Greeley, Colorado 80631 Regional Representative Radiation Programs Environmental Protection Agency 1860 Lincoln Street Denver, Colorado 80203 Mr. H. L. Brey, Manager Nuclear Licensing / Fuels Div.

Public Service Company of Colorado P. O. Box 840 Denver, Colorado 80201 J. W. Gahm, Manager, Nuclear Production Division Fort St. Vrain Nuclear Station 16805 WCR 191 P1atteville, Colorado. 80651 L. Singleton, Manager. Quality Assurance Division (sameaddress)

. Colorado Radiation Control Program Director bec distrib, by RIV:

RPB Resident Inspector R. D. Martin, RA RSB Section Chief RSB/ES EP&RPB P. Wagner, RSB/ES R. Denise, DRSP E. Haycraft, DRSP/LA RIV Official Reading File E. Butcher, ORB 3 CPB/NRR D. Eisenhut, D/DL G. Lainas, DL K. Heitner, ORB 3 J. Taylor, IE E. Jordan, IE H. Polk, SGEB i....,....

REQUEST FOR ADDITIONAL INFORMATION FOR REVIEW OF BUILDING 10 AT FORT ST. VRAIN l

The following information is needed before an evaluation of Building 10 and the Walkover Structure can be completed:

1.

Engineering drawings showing the Building 10 and Walkover Structure layout (plans and elevations) and its spatial relationship with the surrounding buildings.

2.

A comprehensive list of the structural codes and revision dates l

including the section of the code used in the analysis. Several versions of the codes are referenced in the enclosure. Their specific use in the analysis should be clarified.

3.

The attachment V referenced in the document CN 1460 page B9 was not included in the documents provided.

4.

Provide the results of the seismic analysis including, but not limited to, the displacements of Building 10, the Walkover Structure and the surrounding structures.

5.

Provide the effect of the tornado depressurization loads on the structure along with the effect of the tornado missile spectrum.

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